Question

9.65-(5.34-2.35)-1.66怎么算？

Answer 1

9.65-（5.34-2.35）-1.66
=9.65-5.34+2.35-1.66
=（9.65+2.35）-（5.34+1.66）
=12-7
=5
此题应用了乘法分配律的逆用，计算简单

Answer 2

这道题的话可以先把括号展开等于九点65-5点34+2点35-1点六六然后用九点65+2点三五结合再减去五点34+1点六六括号括上这会应该等于12-7=5

Answer 3

用去括号和添括号的方法简便计算。
9.65-(5.34-2.35)-1.66
=9.65-5.34+2.35-1.66
=(9.65+2.35)-(5.34+1.66)
=12-7
=5

Answer 4

9.65-(5.34-2.35)-1.66可以通过以下方式简便计算:
9.65-(5.34-2.35)-1.66=9.65-5.34+2.35-1.66=9.65+2.35-(5.34+1.66)=12-7=5

Answer 5

运用加法结合律，进行简便运算。
9.65-（5.34-2.35）-1.66
=9.65-5.34+2.35-1.66
=（9.65+2.35）-5.34-1.66
=12-（5.34+1.66）
=12-7
=5